Re: [R] How to import data as numeric array?

From: Prof Brian Ripley <ripley_at_stats.ox.ac.uk>
Date: Tue 28 Jun 2005 - 18:49:16 EST

Please consult the `R Data Import/Export Manual'. You could be using scan(), as in

   matrix(scan("some_file", 0), nrow=n, byrow=TRUE)

On Tue, 28 Jun 2005, tong wang wrote:

> Did some search but couldn't find useful result.
>
> I am trying to read a n*m dimension data with read.table, what i need is
> a numeric array, is there any efficient way to allow me get this array
> directly instead of a list? I tried to use as.array() to change the
> mode, but seems it doesn't work and i got this error message:
>
> "Error in "dimnames<-.data.frame"(`*tmp*`, value = list(function (M) :
> invalid dimnames given for data frame "
>
> what's wrong with the dimension names , should i delete them? how can i do that?

I think you wanted as.matrix here, not as.array: probably the call to the latter was incorrect, but we were not shown it.

-- 
Brian D. Ripley,                  ripley@stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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Received on Tue Jun 28 18:52:30 2005

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